My Cisco CCNA security expired, that certification open me the doors many times, so I begin to study again to renew it but I have a dilema.

I am really more interested in Pentest, I've been reading books and took some training with ISSA, also I took the OSCP training and my lab expired three times and I new I had some weaks areas like exploits (I think everybody got this problem).

Shoot me your opinions, keep going with the recertification for Cisco or keep going with security.

I work for IT company so I worked with servers, firewall, wireless, some vulnerabilities assesment (Nessus guys), etc, etc....

I think it demonstrates you have a decent understanding of networking, and it compliments pen test/security certs. I personally just wouldn't have let it expire. I'm not sure if I'd go back through it if I did though...